From f7fd73249bd42c6d1beb25fe59c99d08be104910 Mon Sep 17 00:00:00 2001
From: Steffen Neumann <sneumann@ipb-halle.de>
Date: Tue, 21 May 2019 12:39:34 +0200
Subject: [PATCH] Update help text for Relabel List Identifiers

This addresses https://github.com/galaxyproject/galaxy/issues/6156#issuecomment-494290527.
The rest of #6156 might require python-hacking. Yours, Steffen
---
 lib/galaxy/tools/relabel_from_file.xml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/galaxy/tools/relabel_from_file.xml b/lib/galaxy/tools/relabel_from_file.xml
index e60457b90ea..c35cb51de74 100644
--- a/lib/galaxy/tools/relabel_from_file.xml
+++ b/lib/galaxy/tools/relabel_from_file.xml
@@ -147,6 +147,9 @@
         in the collection. In that case only matching list identifiers will be
         relabeled.
 
+        Valid identifiers must contain only characters (a-z, A-Z), numbers (0-9), 
+        dash and underscore (-, _). Punctuation or whitespace are not allowed. 
+
         This tool will create new history datasets from your collection
         but your quota usage will not increase.
     ]]></help>